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Category: Biomedical Engineering

Newly discovered biomarkers may lead to promising diagnostic tool for Alzheimer’s — ScienceDaily

Diagnosing Alzheimer’s disease and determining a patient’s prognosis is an inexact business, and that stands in the way of better personalized care and advances in treatment. A new study from The Ohio State University has identified a potential new way of confirming the disease and predicting a patient’s outlook. First, the team of researchers discovered new physical biomarkers that could help pinpoint a diagnosis — changes to proteins found in the spinal fluid and blood of patients. In particular, as…

Goal is to reduce unnecessary use of antibiotics, combat antibiotic resistance — ScienceDaily

Antibiotics are lifesaving drugs, but overuse is leading to one of the world’s most pressing health threats: antibiotic resistance. Researchers at the University of Rochester Medical Center are developing a tool to help physicians prescribe antibiotics to patients who really need them, and avoid giving them to individuals who don’t. Scientists from the University’s National Institutes of Health-funded Respiratory Pathogens Research Center identified 11 genetic markers in blood that accurately distinguished between viral and bacterial infections (antibiotics help us fight…

Pressure sensor can identify early stages of flat feet

It records the data from mobile sensors placed on an insole of a shoe. Later, it is being sent via Bluetooth connection to a computer for visualization. Credit: KTU A team of researchers at Kaunas University of Technology (KTU) have designed a device for measuring pressure on human feet. Its applications include pediatric illnesses and monitoring the physical condition of professional athletes. The most mechanical pressure is endured by the feet, which bear all of a person’s weight while walking.…

Cheap 3D printed prosthetics could be game changer for Nepal

Ram’s new hand was manufactured on a 3D printer in Nepal’s capital for just $30, an innovation that could be a game changer for many in the impoverished Himalayan country. Once a farmer, Ram lost his hands and toes within a few years of contracting leprosy, forcing the father-of-three to turn to begging in a desperate bid to feed his family. That’s where he was spotted by US-born Matthew Rockwell, the founder of Disaster Hack, a non-profit technology startup…

Diatoms have sex after all, and ammonium puts them in the mood — ScienceDaily

New research shows a species of diatom, a single-celled algae, thought to be asexual does reproduce sexually, and scientists learned it’s a common compound — ammonium — that puts the ubiquitous organism in the mood. The findings, published today in PLOS One, may be a key step toward greater understanding of the evolution of sexual behavior and also have important biotechnology implications. “Our discoveries solve two persistent mysteries that have plagued diatom researchers,” said corresponding author Kimberly Halsey, a microbiologist…

Light-scattering tool peers into pancreas to find cancer

NSF-funded researchers have developed a technique that is based on the physical principles of light scattering to non-invasively determine the properties of subcellular structures (such as cell nuclei) in organs, providing physicians with more diagnostic information. Credit: Lev T. Perelman, Beth Israel Deaconess Medical Center and Harvard University Pancreatic cancer is difficult to detect early because the pancreas is deep inside the abdomen, making potentially cancerous cells hard to reach and identify without surgery. Researchers funded by the National Science…

Single cells lined up like ducks in a row

The new microhole chip can be populated with 200,000 single cells, each held in place in separate holes. Credit: Fraunhofer IBMT The higher the concentration of tumor cells in the bloodstream, the greater the risk of metastasis. The number of circulating tumor cells indicates how well a patient is responding to therapy. Fraunhofer researchers have developed a new microhole chip that enables cells to be identified and characterized reliably within minutes. The conventional method of FACS analysis (fluorescence-activated cell sorting)…

New technique could increase success rate, life span of implantable devices

Hyowon Lee, an assistant professor in Purdue’s Weldon School of Biomedical Engineering, holds up a smart self-clearing catheter in the form of microscale devices on a paper-thin film that can be assembled into existing catheters. The device could provide a reliable alternative to conventional high-failure devices that require additional surgery to remove. Credit: Trevor Mahlmann A new technique being developed at Purdue University could provide patients who require implantable catheters in the treatment of neurological and other disorders with a…

Military-funded prosthetic technologies benefit more than just veterans

A high-tech prosthesis for a child draws on decades of research. Credit: Mark Geil, CC BY-ND In 1905, an Ohio farmer survived a railroad accident that cost him both of his legs. Two years later, he founded the Ohio Willow Wood company, using the namesake timber to hand-carve prosthetic limbs. The company grew, surviving the Great Depression and a fire that destroyed the plant, and still thrives today in rural Ohio. Few who work there now might remember the curious…

Eye protection in Cuba lab photos

Posted By Jyllian Kemsley on May 23, 2017 in Featured, Personal Protective Equipment, Safety Culture | Cuban chemistry students, who have limited access to safety gear, work on an educational lab at the University of Havana. Credit: Lisette Poole In a recent cover story about chemistry research in Cuba, C&EN included several photos in which people were not wearing appropriate personal protective equipment–eye protection in particular–in labs. The photos garnered several critical comments, such as: Please, please,…